5. Fatal Attraction (1987)

Arguably one of the most well-known thrillers of all time was 1987’s Oscar-nominated drama Fatal Attraction. Starring Michael Douglas and Glenn Close, the movie still haunts the dreams of many of its viewers — and rightfully so. However, the film’s ending, which saw Close’s psychopathic character Alex gunned down by Anne Archer — who played Douglas’ wife Beth — was not the one planned.

Originally, producers plotted for Alex to kill herself and frame Douglas for the murder. The movie ended with the cops taking Douglas away and Beth eventually finding a tape that proves Alex set the whole thing up… vindicating her husband. Audiences hated this ending, and the crew had to go back and (quickly) shoot one that would ring truer with audiences. People are still arguing over which was the better ending; some just aren't a fan of either.